The hose used for LP-gas must be designed for a working pressure of how many psig?

The correct answer is based on the safety standards and regulations concerning the equipment used in LP-gas dispensing. The hose used for LP-gas must be designed to withstand a minimum working pressure of 350 psig. This rating ensures that the hose can handle the pressures encountered during normal operation, thereby reducing the risk of leaks or failures that could lead to unsafe conditions.

In the context of LP-gas systems, it is critical to use hoses that meet or exceed this working pressure rating to safeguard against potential hazards such as explosions or fires. Using hoses with lower pressure ratings could lead to catastrophic failures, especially if the system experiences pressures that exceed those ratings. Thus, selecting a hose rated for at least 350 psig aligns with industry standards and promotes safe practices when handling LP-gas.